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Posts Tagged ‘slope stability’

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The exterior surface of most tailings, waste rock, and heap leach facilities include:

  • A top deck which is the flatter surface that forms the top surface of the facility. This is usually sloped at between one and five percent, primarily to promote runoff.
  • The sideslopes which are easily covered if they are inclined at about five horizontal to one vertical (5H:1V) but which in practice may be as steep as 1.4H:1V.

Covers on the top deck are less subject to erosion, slope instability, and soil creep than covers on sideslopes. Thus different covers may be appropriate at the same facility on the top deck as compared to the sideslopes.  Here are a few idle thoughts on sideslope covers for mine waste facilities. (more…)

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As a consultant you can only advise.  You cannot force.  You can only provide your professional opinion.  You cannot make the client do the right thing.  You can set out facts and possible consequences.  You cannot make the outcome be what you desire or believe it should be. (more…)

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This is a story of a time before computers; before groundwater conceptual models, numerical models, baseline models, and predictive models; before groundwater model calibration, verification, or sensitivity analysis.  This is a story of a time when there was no such thing as a professional geohydrologist, hydrogeologists, or groundwater modeller.  (more…)

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